21301000001 has 2 divisors, whose sum is σ = 21301000002. Its totient is φ = 21301000000.

The previous prime is 21300999971. The next prime is 21301000027. The reversal of 21301000001 is 10000010312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20061889600 + 1239110401 = 141640^2 + 35201^2 .

It is a cyclic number.

It is not a de Polignac number, because 21301000001 - 2¹⁰ = 21300998977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21301000081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650500000 + 10650500001.

It is an arithmetic number, because the mean of its divisors is an integer number (10650500001).

Almost surely, 2^21301000001 is an apocalyptic number.

It is an amenable number.

21301000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21301000001 is an equidigital number, since it uses as much as digits as its factorization.

21301000001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 21301000001 its reverse (10000010312), we get a palindrome (31301010313).

The spelling of 21301000001 in words is "twenty-one billion, three hundred one million, one", and thus it is an aban number.